The John Deere R72 is a riding lawn mower produced from 1984 to 1986. It features an 8 hp Briggs & Stratton 1-cylinder gasoline engine with air-cooled vertical shaft, a 5-speed belt-driven gear transmission with 5 forward and 1 reverse gear, and two-wheel drive with manual steering and mechanical band brakes. The mower has a 30-inch mid-mount John Deere mower deck with manual lift and cutting height from 1 to 3.5 inches. It weighs 290 lbs and has a wheelbase of 42 inches. The electrical system uses a 12-volt battery with negative ground. The R72 was originally priced at $1,339 in 1983.